service manual
Contents
1. 1500 10 1 2 1500 10 1 28 100 10 1 4 100 10 1 4 1000 10 1 44 1000 10 1 44 8200 10 1 44 8200 10 1 44 22 10 1 24 22K 10 1 2 822 54 USE 485134846 822 54 USE 485134846 28176 USE 485134747 TAPE DECK MECHANICAL PARTS RESISTORS R 18 68127099 R 19 68128224 R 21 68128902 22 68128902 R 23 68129662 24 68129662 R 25 68128902 R 26 68128902 R 27 68127513 R 28 68127513 R 29 68129753 R 30 68129753 8 31 68127802 32 68127802 R 33 68128686 R 34 68128686 R 35 68125568 R 36 68125568 TRANSISTORS 9 4 485134823 9 5 488134665 9 6 488134823 9 7 488134665 9 16 488134746 1 3 7A43576A01 2 4 49B43791A01 5 43A43867A01 6 26A40607B01 7 35132645 8 9 38122820 10 zaa 11 45 40480 01 13 14 3 564805 15 16 14A543810 19 9K561755 21 22C42038A05 22 49A41281B01 23 22A43573A01 25 41P40059A48 28 32 84D43709A03 37 41A43742A01 38 47P40059A24 39 45B43929A01 40 43K471633 41 47A40181B01 42 41A40180B01 53 49A43659A03 54 22B43667A03 58 15P40059A28 59 22C42038A02 60 41B43609A03 62 3T43787A01 63 43K471633 64 287041 65 7B43531A01 66 46B40913B01 67 71 71A 72 38135441 73 41A40180B01 75 3T43787A02 76 43K471633 77 41B43778A01 78 356961 SUPPORT motor ru2. 6 60 SPEAKER 5 PM 80 VC A7MVW 81 8 8 8 8 6 60 SPEAKER 5 PM 80 VC ATMVF VG 6 60 SPEAKER 5 1 4 89 ATMVS 6 60 13 14 15 Ref Part List Ref Part No Number Description Price No Number Description ELECTRICAL PARTS The capacitors in this list are 655122346 50 41265 01 50 41485 01 COILS CHOKES 1 1 1 2 L 3 L 4 CONTROLS amp RESISTORS 25043221424 R 1 65127800 R 2 68127800 R 3 68129775 R 4 68129144 R 5 68129144 R 6 65127806 R 7 68129981 R 8 65128689 R 9 65128687 R 10 65127804 R 11 65127807 R 12 65129226 R 13 65127800 R 14 65128687 R 15 65129146 R 16 65127803 R 17 68127633 R 18 R 19 R 20 65129148 R 21 thru R 36 R 39 68121301 R 40 68121301 R 41 18C40587B01 R 42 65128689 R 43 65128689 R 44 68127803 R 45 68127803 R 46 18C40483B01 R 48 68121301 R 49 65121301 R 50 68129147 R 51 65131377 R 52 65129147 R 53 65131377 R 54 68129433 R 55 68129433 R 56 65128903 R 57 68128903 R 58 68127001 R 59 65127001 60 68127802 R 61 68127802 R 62 65127099 R 63 65127099 R 64 65129753 R 65 68129753 R 66 65127800 R 67 17B40756A04 R 68 17B40756A04 R 69 65129101 TRANSFORMERS T 1 24D42517A27 T 2 24D42517A28 T 3 25D41307B07 T 4 25D41307B05 TRANSISTORS Q 1 485134805 0 2 485134804 9 3 485134807 0 4 thru Q 7 Q 9 485134810 9 10 485134810 9 11 485134747
3. 17 17 17 217 17 PAA 17 17 17 2 17 17 17 17 17 17 17 17 17 1 50 1 50 1 50 1 50 3 25 15 9 25 05 05 03 03 25 03 10 25 05 20 55 03 20 40 BRACKET tape head part of 71 SCREW machine 2 56 x 1 4 head sw a wana auqa a 05 SPRING ses 00 00 0 066 05 SCREW special 4 40 x 5 8 85 01 azimuth adjust e e ses sme BEARING ball 3 32 SPRING conical head adjust SCREW mach 4 40 x 3 4 head tension 03 Cont d on Page 21 10 01 2pv 400 FOR 20 1 WATT 1000 25 282 50 25 1 5 8 400 FOR I WATT CONV or IF AMP x RECEPT R14 6 8K 12813 CONNECTIONS NE I POZNANE LEFT 15pv 40 04 CHANNEL 178 1 77 22K I 1ST TAPE i RE D mc 1 26V M S 5 20 CO PRE AMP p FOR 1 WATT B A 4 400 1 e 8 R39 1K 4 5 2 IK m 8 sr 2 3038 12M s 33 18 1 I N I I 5 5 I gt 2 4 1 4 I I 1 a FRONT VIEW TAPE HEAD x I I CONN CABLE 8 3 RIGHT _ 22 C2811 0047__ R35 22K 5 l CHANNEL 1ST TAPE 8 PRE AMP 3 5 a 12 1 26 6 2ND TAPE I S 9 1 PRE AMP 2 i
4. Tracks 1 4 are left channel tracks 5 8 are right channel The positioning of the head can be accomplished either manually or automatically Manual positioning is accomplished whenever the chan nel selector switch on volume con trol shaft is pushedinand released The momentary shorting of this FLYWHEEL RUBBER PRESSURE ROLLER INSIDE TAPE CARTRIDGE TAPE HEAD SHOWN USING TRACKS 1 amp 5 switch returns one end of the sole noid winding to ground The result ant magnetic field in the solenoid pulls in the solenoid s spring loaded shaft for an instant when the shaft returns to its original position it detents the ratchet end of the cam shaft to its next position Incontact with the irregularly shaped cam is the tape head transfer pin located beneath the head which moves the head up or down Automatic positioning of the head to the next dual channel program is accomplished by the tape itself when the end of a program is reached The pre recorded tape has at the end of the recorded programs a strip of metal foil which shorts out the track switch which is in contact with the tape at all times This switch is wired in parallel with the channel selector switch to start the same action that occurred when the channel selector switch was activated DRIVE BELT CAPSTAN MICRO SWITCH ACTUATING ARM TRACK 2 TRACK 4 TRACK 5 11 11 TRACK3
5. 11 11 18 6 TRACK 7 TRACK SWITCH METAL FOIL TRANSFER PIN RATCHET TAPE DRIVE AND HEAD POSITIONING SC 902 RETURN SPRING SOLENOID 04 013 09 00 85 016 DRIVE BELT 4 FLYWHEEL PARTS LOCATION VIEW Pa E8 E3 AZIMUTH HEIGHT HEAD E5 RADIO TAPE MOTOR ADJUSTING ADJUSTING TENSION MICRO SWITCH SCREW SCREW ADJUSTING SCREW SWITCH E6 E7 TRACK SWITCH STEREO HEAD PARTS LOCATION TOP VIEW WITH FLYWHEEL REMOVED 3 E4 SOLENOID SUPPORT 37 PLUNGER TENSION SPRING I 23 I TRANSFER PIN LUNGER UNDER CAM 259 FLYWHEEL RETAINING PIN CARTRIDGE 1 an TENSION u pe SPRING AE PARTS LOCATION BOTTOM VIEW PARTS LOCATION PRE AMP CHASSIS 3415 MIIA 1415 ININOdWOD MIIA NOI1V2O1 SLAVd SINIOd 30N343434 SISSVHD Q3LV1d NOILVJ01 SLAVd SINIOd 30N343434 SISSVHD Q3LV1d dWV 3Ad 34 1 MIIA 401 dWV 3Ad 3dV 1 3415 WOU MIIA aavOg 3415 ININOdWOD WOU MIIA NOILVJ01 SLAVd SINIOd 30N383434 SISSVHD 031914 NOI1V2O1 518 4 SINIOd 40N343434 SISSVHD G31V1d WOLLO A314IIdWV OIGNVv dOl 433Id3I1dW V Olanv 2 pe 502922 OM mit AM RADIO BOTTOM VIEW AM RADIO TOP VIEW PLATED CHASSIS RE
6. MANUAL 68P43101A13 VOLKSWAGEN 8 a js 2 83 8 802 8 5 amp 5 WH MOTOROLA PART 68P43101A13 A7MV SERIES Sapphire VIII stereo tape player MOTOROLA GENERAL INFORMATION These 12 volt models are designed for custom installation in the following vehicles Model A7MVF Volkswagen Fast back Model A7MVG Karmann Ghia Model 5 Volkswagen Square back Model A7MVT Volkswagen Trans porter Model A7MVW Volkswagen Sedan SERVICE STATION PROCEDURE 1 A defective in guarantee tape radio unit must be accompanied by the Customer s Guarantee Policy Tag This tag must be properly filled in by the Volkswagen dealer at the time of the unit purchase Accept as guarantee repairs only those units within the 1 year or 12 000 miles whichever occurs first guarantee period The re moval or re installation of this unit is customarily performed by the Volkswagen dealer and is not covered by this guarantee Also the removal of motor noise tire static electrical interference faulty installations and aerial re pairs are not considered as guar antee repairs and therefore ex penses related to such services should be handled by the car dealer 2 Fill in MotorolaGuarantee Labor Claim Part Number 68P60016A30 and mail Green and Pink copies to Motorola Guarantee Service Motorola Automotive Products Inc 9401 Wes
7. W3SSV 14 2 MIHIS 95 2 Fo gt powie os 03H u 6 Nid ONIAdS 1 145 1 21 02 vs 9NISNOH 10115 154 2 2934 4015 INILYMLOV HOLIMSOWJIW ddyl s 10109 HOLIM ot MAIS INILSNFAV HINWIZY 8 1 8 01 9 133205 INILSNFAV YOLSISNVUL 1H913H 61 29 RADIO ALIGNMENT Connect an output meter across the speaker voice coil Set volume to maximum and tone to treble Atten uate signal generator output to maintain 2 83 volts 1 watt across 8 ohm load on either channel on output meter at all times to prevent receiver overloading GENERATOR GENERATOR FREQUENCY STEP CONNECTION 400 cycle mod TUNER SET ADJUST REMARKS IF ALIGNMENT ls Antenna receptacle High end stop Adjust for maximum thru lmf and chassis j RF ALIGNMENT 2 Antenna receptacle 1610Kc High end stop Adjust for maximum thru dummy see Figure NOTE Do not perform Steps 3 4 5 and 6 unless tuner has been tampered with or components have been replaced Before proceeding with Step 3 back tuning cores as far as possible out of coil forms to eliminate their effect on trimmer adjustments Remove the side cover to gain access to the tuner cores 3 Antenna 1610 High end stop 5 667 Adjust for maximum th
8. 9 13 485134810 SEE TAPE DECK PARTS FUSE 7 5 SPEAKER 5 80 A7MVF ewe SPEAKER 5 1 4 80 VC SEE TUNER PARTS FILTER 220 220 330 82K 68K 27K 3300 2200 6800 4700 33K 100K 220 6800 150K 1500 470 1 4W 1 2W 10 SEE TAPE DECK PARTS 470K 10 1 4W SEE TAPE DECK PARTS 1000 10 1 24 1000 10 1 24 CONTROL 1 2200 10 1 44 2200 10 1 44 1500 10 1 44 1500 10 1 4 4 CONTROL multiple 1000 10 1 24 1000 10 1 2 220K 10 1 44 15 10 1 44 220K 10 1 44 15 10 1 48 5600 10 1 4 5600 10 1 44 39K 10 1 4W 39K 10 1 44 2 2 10 1 2 2 2 10 1 2 1000 10 1 44 1000 10 T Waya sasaw em eY s 220 10 1 2W 220 10 1 24 100 10 1 44 100 10 1 44 220 10 1 4 20 5 WW USE 17840756 06 20 5 WW USE 17840756 06 680 10 1 2 15 44 4 2ND OUTPUT left channel OUTPUT left channel Ref Part List R
9. Motorola Part No 11P40059A55 A Drive surface of cam 39 B Ball bearing on end of cam 40 Solenoid plunger 38 D Ball bearings in head mounting bracket 63 and 76 Silicon grease Dow Corning DC 4 Motorola Part Number 11M490487 should be applied to the bottom of the capstan shaft 5 TAPE PLAYER DRIVE amp HEAD POSITIONING The view shown below is one looking into the tape player from the front with a tape cartridge inserted and operating When the tape cartridge is inserted into the tape slot and with the unit turned on the radio tape switch switches the input of the audio system from the radio circuitry to tape pre amp circuitry Atthe same time the front of the tape cartridge activates a micro switch which in turn turns on the tape motor The drive belt on the motor shaft drives the flywheel causing it to rotate The flywheel shaft capstan which presses the tape against the rubber pressure roller inside the cartridge drives the tape The tape guide bracket keeps the tape from riding up and down the head TAPE GUIDE BRACKET RADIO TAPE SWITCH TRACK 1 Since the pre recorded tape has four dual channel programs 8 tracks the head has to be moved to four different height positions with re spect to the tape The sequence of head movement is as follows Tracks fl and 5 Tracks 2 and 6 Tracks 3 and 7 Tracks 4 and 8 Tracks 1 and 5 return to original tracks
10. is recorded not on track 2 but on the guard bands adjacent to track 2 This adjust ment will minimize cross talk 5 Azimuth Connect scope or VTVM across the output of the right channel and adjust balance control for maximum right channel output track 6 information 8Kc will be presented Adjust azimuth adjust ing screw for maximum output Misadjustment of this screw would cause poor high frequency response HEIGHT FLYWHEEL ADJU en SCREW PIVOT HEAD TENSION ADJUSTING SCREW AZIMUTH LOOSEN TO REPOSITION HEAD HEAD ADJUSTMENTS 6 Repeat Steps 4 and 5 to opti mize these adjustments then cement adjusting screws in place with glyptal Motorola Part Number 11P40059A53 or other non hardening cement NOTE Before cementing index head 4 times and recheck for null optimize the adjustment The next two_adjustments are not normally required except when the head has been replaced or tampered with HEAD TENSION ADJUSTMENT This adjustment will have to be made if the head assembly has been re placed Adjust the screw so that there is 1 4 between the bottom flat of the screw head and the head mounting bracket with head in its lowest position tracks 4 and 8 Apply glyptal to the screw from the bottom HEAD POSITIONING ADJUSTMENT Not normally required unless tam pering has occurred or if mounting screw has loosened The head should be set to 1 680 005 measured from the center
11. of the pivot hole to the front of the head Since this dimensionis quite critical and may be difficult to gain access to an alternate method is covered below POINT 1 680 00 Remove the head and bracket assem bly from the tape deck mechanism by first unplugging the cable from the rear of the head then remove the head tension screw Loosen the head mounting screw and apply lock tite or other suitable adhesive to the 4 surfaces of the head where it contacts the bracket Insert a 082 drill bit 45 drill through both pivot holes With a rule guage or vernier caliper adjust the head to 1 721 005 measured from the rear edge of the drill to the front edge of the tape head see detail Tighten the head mounting screw and apply glyptal to the mounting nut and screw Re install the head and bracket assembly then adjust the head tension screw to the 1 4 dimension referred to in the detail Again apply glyptal to the bottom of this screw Lastly perform the azimuth and height adjustments on the head as referred to above REAR OF DRILL TO FRONT OF TAPE HEAD MOUNTING 082 DIAMETER 445 DRILL BIT TAPE PLUG HEAD SCREW HEAD POSITIONING LUBRICATION Refer to exploded view on page 10 The unit is lubricated at the factory and normally no additional lubrica tion is required however if parts are replaced the following areas should be lubricated with a light weight low temperature grease
12. 0 NOT OPERATE AND DAMAGE TO COMPONENTS B WILL RESULT IF CONNECTED OTHERWISE E E 31 8 3 RIGHT CHANNEL 8 5 NOTES DIAG 63D43301A31 OR SPCL CAPACITORS UNLESS OTHERWISE SPECIFIED DECIMAL VALUES IN ALL OTHERS IN MMF EBC ofe 910 VOLTAGES MEASURED FROM POINT INDICATED 14 8 Ole R52 220K TO CHASSIS WITH A VTVM 10 NO SIGNAL INPUT BOT VIEW BOT VIEW CO THE EXACT VALUE TO DETERMINED BY TRANSISTOR TRANSISTOR C3 CONN PRODUCTION PROCESS REPLACE WITH THE SAME CONN CONN _ IR E VALUE OF THE ORIGINAL PART 1 N TUNING RANGE 530 TO 1610KC 5 6 SDH INPUT VOLTAGE 14 4V DC 2 l VIEW IF FREQ 262 5KC BOT VIEW Tl amp 2 CONN 011 15 amp 16 CONN 20 Ref Part List Ref Part List No Number Description Price No Number Description SEE 9 IN ELECTRICAL PARTS 11P40059A53 GLYPTAL for cementing 26B43657A01 SEIRD motor MEK s as ove adjustment 42B43871A01 BELT wisi panpapi GREASE silleon 0 0 GREASE special light weight low temperature WRENCH 1 16 allen head for azimuth amp height adjustment sas 56 11M490487 11P40059A55 ACCESSORY SERVICE AIDS AND TOOLS 66P40059A32 99P43309A01 _ CARTRIDGE test tape 68P40059A33 DISC strob
13. 12 38135757 7A40566B02 38135147 30B41610B01 38135175 30B41610B02 7C43782A01 radio tape 15D40565B01 COVER bottom INSTALLATION PARTS MODEL A7MVG 15D40563B01 COVER 15C41588B01 COVER trim between radio 1V41300B79 RADIO INSTALLATION KIT amp dash A7MVF 5 15D40686B01 COVER trim lge radio 8B40353B01 CAPACITOR 8 5510115 10 GROMMET insul spkr leads 61B40602B01 CRYSTAL 41 1 14A64196A01 INSULATOR 1 15C41109B03 13 40658 01 15 40810 01 DOOR tape GRILLE spkr A7MVG VT HOUSING spkr rear 36C40039B01 KNOB 1 36B40252B01 KNOB vol tuning indexing 29 42410 01 LUG adaptor dial lite gt 424 28124821 NUT hex 1 2 28 front 14D40596A01 INSULATOR female 3 cond radio MEG nenne ne x ae same sae 2A563491 NUT hex 5 1 1 4 20 14A42296A01 INSULATOR male 2 cond strap to radio spkr leads A7MVG VS VW 38125452 SCREW tpg 8 15 x 1 2 14A543810 INSULATOR front spkr 36C40039B01 KNO
14. 20 561 4 3 De gt I amp I i RO K x i Cas i x x 34 1 s 8 R49 s g 397 IK i i 2g 1 8 23 16 8 Ai ge ZL 2 PLATED BOARD WIRING LEGEND ME E B AVC SCHEMATIC DIAGRAM 19 5 SW ACTIVATED WITH CARTRIDGE PUSHED IN E4 SOLENOID FOR DETENTING HEAD E6 Q NORMALLY OPEN SW ON kw al cn or CONTACTS FOR AUTOMATIC DETENTING GOVERNOR CONTACTS ON MOTOR R15 150K I I I I I I 1 1 1 1 1 I I I I I I I 1 1 J RIT 470 gt WHT x lt 10 lo AW C18B 500MF kd C43 122 25 EN SPKR LEFT CHANNEL r E12 u REAR SPKR RIGHT CHANNEL 8 ONLY 010 R56 39K R6l IK 01 BE 44 80MF 2N176 DRIVER PWR AMP R62 220 09 54 PRE DRIVER ON OFF SW VOL CONT 4 69 680 Q ol 42 lal gt BLU DIAL LIGHT LEAD 013 5 54C A CAUTION PRE DRIVER DRIVER A LEAD MUST CONNECTED TO POSITIVE R57 39K R60 1K jar 54 45 80MF SIDE OF POWER SUPPLY RADIO WILL I lt q 11 27 03 22
15. 38135175 SCREW tpg 10 12 x 3 4 br EE 309 41 42528 01 SPRING static coil 40 42 565383 STRAP radio 25 29A64295A01 TERMINAL female splice 05 INSTALLATION PARTS MODEL A7MVW 1V40800B18 RADIO INSTALLATION 8B40353B01 CAPACITOR 80 5510115 10 GROMMET insul spkr leads 10 36 40039 01 KNOB 1 35 36B41423B01 KNOB vol tuning indexing 50 14 64196 1 INSULATOR splice 15 29 42410 01 LUG adaptor dial lite 10 28124821 NUT hex 1 2 28 radio 4 15 24563491 NUT hex spcl 1 4 20 strap 03 35135147 SCREW tpg 10 12 x 1 2 front spkr mtg oss sass 03 35135175 SCREW tpg 10 12 x 3 4 wear spkr 05 41B42528A01 SPRING static 11 40 29A64295A01 TERMINAL female splice 05 TUNER PARTS ALL MODELS 1U43500A16 TUNER MFT603 complete 12 75 1V40400B33 COILS amp MTG PLATE ASSEM incl 1 1 1 2 L 3 3 35 76C40706A10 CORE tuning ant 8 19 76C40647A10 CORE tuning 10 5 562438 GROMMET core 10 47B40665B01 SHAFT tuning incl ring amp 1 00 41B40749B01 SPRING shaft 15 TAPE DECK PARTS ALL MODELS ELECTRICAL PARTS CA
16. 41A63638A01 SPRING tension pointer 8B40353B01 CAPACITOR generator 42K565373 STRAP radio mtg A7MVF 5510115 10 GROMMET insul spkr leads VG VS 14A64196A01 INSULATOR 1 36C40039B01 36B40252B01 29A42410A01 25124821 46 565358 29D40600A02 29C40595A01 KNOB 1 KNOB vol tuning indexing LUG adaptor dial light NUT hex 1 2 28 front radi a NUT hex spcl 1 4 20 strap to radio mtg NUT kepts 1 4 20 strap MU STUD trimount trim cover TERMINAL lug spkr leads TERMINAL male 2 cond spkr leads A7MVG 5 INSTALLATION PARTS MODEL A7MVF 2A563491 1V41500B09 RADIO INSTALLATION KIT 25410091 8 40353 01 CAPACITOR generator 17 2B43951A01 NUT spring 8 15 rear Spkr 03 38122358 SCREW mach 1 4 20 x 3 8 35125886 SCREW 8 15 x 5 8 SL 38134015 SCREW tpg 8 15 x 5 8 PL 05 35125452 SCREW tpg 8 15 1 2 front Spkr nig ass se 3B40410A07 SCREW tpg 8 15 x 1 1 4 rear spkr 10 35134145 SCREW tpg 10 12 x 3 8 PHL 35135147 SCREW tpg 10 12 x 1 2 front spkr 03
17. 71B01 PLATE spkr mtg A7MVF VG 38122358 SCREW mach 1 4 20 x 3 8 600 351940 SCREW mach 10 24 x 1 2 64D42417A03 PLATE spkr mtg A7MVT 38125452 SCREW tpg 8 15 x 1 2 52B40654B01 POINTER 4 1 front spkr 3B40410A07 SCREW tpg 8 15 x 1 1 4 rear spkr 94531066 9C41095A27 RECEPTACLE RECEPTACLE fuse incl paw Beier A 38135712 SCREW tpg 8 32 1 4 47A43513A02 ROD cartridge brkt to radio 34 40603 01 SCALE 4 1 38135757 SCREW tpg 10 12 x 1 2 35122021 SCREW mach 8 32 9 16 brkt to dash spkr to plate A7MVF 35135147 SCREW tpg 10 12 x 1 2 strap 3K560695 SCREW spcl trans 35135175 SCREW tpg 10 12 x 3 4 35127896 SCREW tpg 4 40 x 1 4 mts lt su 5 Gs swa assem 41B42528A01 SPRING static 11 3B40410A07 SCREW tpg 98 15 1 1 4 rear spkr mtg A7MVT INSTALLATION PARTS MODEL A7MVT 9K562925 SOCKET dial lite 9 43089 01 SOCKET 1V41500B12 RADIO INSTALLATION KIT 41A43588A01 SPRING cartridge door
18. ARD GAINING ACCESS TO PLATED BOARDS FILTER CHOKE AND OUTPUT TRANSFORMERS TAPE HEAD ERASER END OF PENCIL CAPSTAN SHAFT TAPE CARTRIDGE SLOT NIA ar TURN ON PLAYER amp USE COTTON SWAB MOISTENED WITH DEPRESS MOTOR SWITCH ISOPROPYL RUBBING ALCOHOL WITH ERASER END OF DO NOT USE CARBON TETRACHLORIDE PENCIL TAPE HEAD amp CAPSTAN CLEANING 10 HEAD DEMAGNETIZING Do not use magnetized screwdrivers and wrenches near the head since these can magnetize the head The head may also after a long period of time acquire some residual mag netism head that is magnetized will show a definite loss of high frequency response and an increase in noise level Use a commercially available head demagnetizer fol lowing instructions included with the unit to demagnetize the head 11 HEAD REPLACEMENT The location of the tape head with respect to its mounting bracket is very _ critical for this reason replace ment heads are supplied already secured to their mounting bracket and positioned correctly at the fac tory When replacing a head re member to replace it as an assem bly that is remove the defective head and bracket and replace it with the new head and bracket assembly If for some reason the location of the head has changed due to aloose mounting screw etc position itas shown Positioning Adjust ment AMPLIFIER MOUNTING REMOVE 2 REMOVE
19. B tone amp bal A7MVF 38135147 SCREW tpg 10 12 x 1 2 VS sny 4 44844854 strap 36B40252B01 KNOB vol tuning indexing 35135175 SCREW tpg 10 12 x 3 4 A7MVF 5 brkt 29A541679 41 42528 01 SPRING static 11 29A64295A01 TERMINAL female splice LUG term blade type spkr 1 LUG term dial amp spkr 1 4 LUG term fuse recept NAMEPLATE Eight Track Stereo A7MVF 5 NUT hex 1 4 20 radio 44 NUT hex 1 2 28 front 29K534326 INSTALLATION PARTS MODEL A7MVS 29C41506A01 33841611801 1V41500B10 RADIO INSTALLATION KIT 28135435 8 40353 01 CAPACITOR generator 14464196 01 INSULATOR 1 29442410401 LUG adaptor dial lite 25124821 radio mtg A7MVF VS 28410091 NUT hex 1 4 20 25129892 NUT hex 8 32 x 5 16 spkr 2A563491 NUT hex spcl 1 4 20 to plate A7MVF VG VW strap to radio 2B43951A01 NUT spring 8 15 rear 28131997 NUT keps 10 24 x 3 8 spkr mtg 2B43951A01 NUT spring 8 15 rear 64 40611 01 PLATE adaptor A7MVF VG SPET MUE e siise s s 64C413
20. FERENCE POINTS AND PARTS LOCATION PLATED CHASSIS REFERENCE POINTS AND PARTS LOCATION VIEW FROM WIRING SIDE OF BOARD VIEW FROM COMPONENT SIDE OF BOARD TAPE DECK EXPLODED VIEW 10 TAPE PLAYER TROUBLESHOOTING CHART NOTE 71 DO NOT OPERATE TAPE PLAYER UPSIDE DOWN CARTRIDGE MAY JAM NOTE 2 MANY TAPE PLAYER PROBLEMS CAN BE CAUSED BY DEFECTIVE CARTRIDGES BEFORE SERVICING THE TAPE PLAYER CHECK FOR A DEFECTIVE CARTRIDGE BY SUBSTITUTING A KNOWN GOOD CARTRIDGE SYMPTOM Tape breaks or winds up around capstan shaft actuating arm 11 housing 58 Cross talk adjustment 71A binding not positioning tape tape head loose or missing correctly Motor runs fast circuitry Slow speed also see Poor Tape Drive 2 Mechanical binding 1 Defective tape cartridge 2 Bent or burred edge on front of micro switch 3 Defective capstan l Defective tape cartridge 2 Tape head 71 out of 3 Head mounting bracket 4 Tape guide bracket 65 correctly with respect to 5 Thrust plate on bottom of capstan housing 58 6 Defective cam and ratchet assembly 39 7 Tape head not indexing 1 Defect in regulator 2 Defective motor 2 1 Defective tape cartridge CAUSE POSSIBLE SOLUTION Check tape cartridge by inserting a known good tape cart
21. NT When replacing a transistor other than a power or regulator transis tor grasp the transistor leads be tween transistor body and plated chassis board with a pair of long nose pliers to prevent excessive heating of transistor body during soldering operation 5 POWER AND REGULATOR TRANSISTOR REPLACEMENT When replacing a power or regula tor transistor be sure to A Use the transistor specified in the Replacement Parts List ILLINOIS COPYRIGHT 1967 BY MOTOROLA INC PRINTED IN U S A Coat both sides of transistor insulator with DC 4 grease Motorola Part No 11M490487 to insure proper heat dissipation Securely and evenly tighten the transistor mounting screws 6 GAINING ACCESS TO THE PLATED BOARDS Remove top and bottom covers and refer to photo Tape Pre Amp Plated Board To remove this board for servicing merely unsolder the chassis ground lead see photo bend the copper retaining clip and lift up the chassis to a more serviceable position Audio Amplifier Plated Board To gain access to the bottom side of this board remove the two 2 screws at the front side of the radio see photo To remove the board for servicing remove the screw from the mounting bracket unsolder the tabs straighten the tabs then remove the mounting bracket AM Radio Plated Board To service this board remove the 5 side cover mounting screws bend the copper retaining clip so that the side cover can be re
22. PACITORS NOTE The capacitors in this list are recommended replacement types for the original equipment all are ceramic disc type unless otherwise specified 18 20 23C41928A24 20 mf 16V 1 65 c 21 23 41928 24 20 mf 16V 1 65 22 23C41928A06 16 mf 16V 1 90 23 23 41928 06 16 mf 16V 90 C 26 23C41928A23 80 mf 16V lytic 65 C 27 23C41928A23 80 mf 16V 1 65 28 8C42750A20 0047 mf 10 100V mylar USE 8 40906427 30 c 29 8C42750A20 0047 mf 10 100 mylar USE 8 40906 27 30 51 8C40906A05 1 mf 20 100 mylar 35 52 235187 06 1000 mf 16 lytic 65 MISCELLANEOUS ELECTRICAL PARTS 3 59C43543A02 MOTOR regulated 21 95 E 4 80B43685A01 5 3 90 5 40 43677 01 SWITCH 2 00 6 40B43642A01 SWITCH leaf 1 20 E 7 1B43784A01 STEREO HEAD amp BRACKET ASSEM USE 59P40059A36 13 25 E 8 SEE ELECTRICAL PARTS E 9 30C40643B02 CABLE stereo head 1 35 E 13 48541508 01 RECTIFIER silicon 1 00 220 10 1 28 12 105 1 24 4 47K 10 1 4 4 47K 10 1 44 180 10 1 44 180 10 1 44 47K 10 1 44 47K 10 1 44
23. WIRES RETAINING CLIP ADJUSTMENTS AND LUBRICATION ADJUSTMENTS Head adjustments are normally re quired for cases of cross talk loss or noisy frequency response or if the head has been replaced A suitable test tape should be used for the azimuth and height adjust ments Motorola has a suitable test tape cartridge available for the field under Part Number 99P43309A01 Instructions in the form of a label on the cartridge are included Connect 8 ohm loads either speakers or resistors across the output of both channels and set tone control to treble maximum clock wise Use an oscilloscope or AC output meter and 1 16 Allen wrench for azimuth and height ad justments Motorola Part Number 66P40059A32 HEIGHT This is an adjustment to move the tape head up or down so that it can be positioned exactly in line with the pre recorded information on the tape Misadjustment of this screw would cause cross talk and or poor separation With the Motorola test tape proceed as follows 1 Remove top cover and make sure output loads are connected across each channel 2 Insert test tape cartridge into tape slot and position head totracks 2 and 6 3 Set balance control for maximum output from left channel 4 Connect scope or across left channel output track 2 in formation 1Kc will be presented Adjust height adjusting screw fora null The reason for the null is that the information
24. bber SEE E 3 IN ELECTRICAL PARTS FLYWHEEL 8 SHAFT ASSEM BEARING nylon flywheel amp RETAINER actuating arm SCREW tpg 4 40 x 7 32 act arm PSU sassa SCREW tpg 4 40 x 5 8 micro SW MEE SEE E 5 IN ELECTRICAL PARTS ARM micro switch actuating SCREW spcl transistor mtg SEE Q 16 IN ELECTRICAL PARTS INSULATOR transistor SOCKET transistor PIN drive cartridge roller ROLLER cartridge tension 1 PIN transfer 288 292 SPRING ROLLER ASSEM cartridge tension SEE E 4 IN ELECTRICAL PARTS BOARD plated chassis pre amp less all components SPRING plunger tension PLUNGER BRACKET amp ACTUATOR 5 5 amp RATCHET ASSEM BEARING ball 3 32 PLUNGER cam tenSion SPRING ROLLER deck slide plastic PIN spiral deck slide 11 CAPSTAN HOUSING ASSEM PIN flywheel retaining SPRING head bracket mtg SCREW spcl 4 40 x 1 4 height BEARING ball 3 32 NUT hex 2 56 x 3 16 stereo BRACKET tape guide STOP tape nylon tape guide 4 4 SEE E 6 IN ELECTRICAL PARTS SEE E 7 IN ELECTRICAL PARTS Ref Part List Ref Part List No Number Description Price No Number Description Price
25. ckfor defective drive belt tape cartridge or electrical problem see Cause 3 Replace 52 Check motor by grounding motor governor junction of yellow motor wire and R 18 for an instant motor should speed up if motor does not speed up motor is defective If motor does speed up check voltages in regulator circuitry Check tape cartridge by inserting a known good tape Check cartridge tension by pulling cartridge slightly away from tape head then release the cartridge should snap back into place and there should be no end play on the right side of the cartridge If the cartridge does not snap in there is end play replace the spring and roller 25 Make sure mounting screw does not pro trude too far to interfere with cartridge Also with cartridge inserted the roller 53 on the left side should be in contact with the cartridge If it is not replace the roller Motorola Part Number 49A43659A03 Useisopropyl rubbing alcohol to clean the fol lowing areas outer edge of flywheel motor drive shaft and capstan shaft Drive belt should be replaced if stretched or banana shaped belt should be installed with paint stripe on outside Make certain roller is seated in spring 25 replace if missing Examine left side of tape cartridge if severely scored lightly file off any burrs on left front edge of tape slot or escutcheon Replace if severely scored replace capstan housing 58 also With cartridge
26. e flywheel DENOTES NEW ITEM APPEARING IN ANY LIST FOR FIRST TIME 21
27. ef Part List No Number Description Price No Number Description Price Q 14 488134810 14464196401 INSULATOR 488134747 294424104011 LUG adaptor dial light 28410091 NUT hex 1 4 20 24563491 NUT hex Spel 1 4 20 strap to radio DNL TE w ta SEE TAPE DECK PARTS MECHANICAL PARTS 25131997 NUT keps 10 24 x 3 8 13041017 07 BEZEL radio A7MVF VS 35122358 SCREW mach 1 4 20 x 3 8 13D40655B04j BEZEL radio A7MVG VT 351940 SCREW mach 10 24 x 1 2 13D40655B01 BEZEL radio 7 3S125452 SCREW tpg 98 15 x 1 2 front spkr mtg sa SCREW tpg 88 32 x 1 4 brkt to radio SCREW tpg 10 12 x 1 2 brkt to dash SCREW tpg 10 12 x 1 2 strap MER 4 waya sine SCREW tpg 10 12 x 3 4 esa 41 42528 01 SPRING static 11 29A64295A01 TERMINAL female splice 84D43708A05 84D43707A01 3A40730A03 BOARD plated BOARD plated BOLT radio mtg 1 4 20 5 8 BRACKET radio mtg sac eves CABLE rear spkr incl all onn 52 CABLE rear spkr incl all conn 7 BRCKT amp ROLLER ASSEM 381357
28. inserted and operating make certain drive belt rides on center of brass motor pulley bend the motor housing using wide jawed pliers if necessary If belt rides too high bend the housing away from the capstan if belt rides too low rubs against housing bend the housing toward the capstan CAUTION Donotbend the brass motor pulley Increase tension on spring or replace Replace solenoid plunger Set the height of the screw so that there is 1 4 between bottom flat portion of the screw head and the head bracket see Head Adjustment Loca tion detail Insert spring into its hole or replace cam if spring is missing TAPE P SYMPTOM Motor noise from tape motor Squeaking or excessive wow Drive belt slips off flywheel also slow tape start up Tape motor does not run when cartridge is inserted Intermittent audio during tape operation Unit will not switch from radio to tape and or vice versa when cartridge is inserted or removed LAYER TROUBLESHOOTING CHART CAUSE 5 Defective cam and ratchet assembly 39 6 Head cable 79 binding 1 Open regulator filter capacitor 52 2 Motor grounded to cover l Defective tape cartridge 2 Broken or missing nylon capstan bearing 5 3 Scored capstan shaft part of 4 4 Thrust plate part of 58 loose or missing from bottom of capstan housing or defective bearings in capstan housing 1 Defective
29. l to the right Tune in desired station with the smaller knob located to the right of the tape slot Adjust volume tone and balance as required NOTE When the tape cartridge is removed from the tape slot the unit automatically switches from tape operation to AM radio operation CAUTION The tape cartridge should always be pulled out com pletely or approximately 1 from the seated play position before leaving car or turning unit off TAPE CARTRIDGE CARE To assure maximum life and noise free operation tapes should be 9401 WEST GRAND AVENUE FRANKLIN PARK PRICE 50 CENTS MANUAL 68P43101A13 VOLKSWAGEN 7 SERIES service manual set ene We stored in a cool cleananddryplace out of the rays of the sun and with the open tape end down SERVICE NOTES GENERAL SERVICE NOTES 1 POLARITY WHEN SERVICING THIS UNIT THE LEAD MUST BE CONNECTED TO THE POSITIVE SIDE OF POWERSOURCE IF CON NECTED OTHERWISE RECEIVER WILL NOT OPERATE AND DAMAGE TO COMPONENTS MAY RESULT 2 POWER SUPPLY REQUIRE MENTS It is preferable to use a storage battery without a battery charger in place of a battery elim inator If a battery eliminator is used it must be well filtered and regulated 3 OUTPUT LOAD Always operate this receiver with an output load across each of the two channels either 8 ohm speakers or 8 ohm 5 watt resistive loads can be used 4 TRANSISTOR REPLACEME
30. ly any pressure to the brass motor pulley Bend actuating arm 11 far enough to activate micro switch when cartridge is inserted Check micro switch by applying B voltage directly to emitter of regulator transistor Also compare voltages in regulator circuit to those on schematic Replace suspected component s Make certain head cable is firmly plugged into head Cable can be checked for intermittent s by wiggling replace cable if necessary Check switch action both electrically and mechanically replace switch if necessary Check switch action both electrically and mechanically replace switch if necessary 13 4303 1 10 OL IN3W39 31 25 1VIG 230191 LY HALNIOd 135 230101 01 135 YANNL 311 104 930191 51103 30 110 JAY 51403 OS YINNL 135 ONIDNIALS WOLLOG Quv08 SISSYHI 390181 4 2 dWV IUd 2 26 m Nid Nid ns i JAIN TWwalds 12 9 1345 2934 Nid i T133HMA14 66 AIBWISSY 5 86 40 184 2 cles LSNAHL NOISNAL WvJ 3 J33HMAT4 Tw 9NISNOH YANN NYLSdYJ 86 UJ4SNYAL DOVAS aa M19NN1d 1804405 ADEE N ge YOLOW 66 40 LUVd W39NNTd ONIYdS WYJ J S310H 1402 1 10 104 NUNL I LYVLS gt SLAVd 3dV 1 MIIA 401 INN 3
31. moved from this board 7 OUTPUT TRANSFORNER AND FILTER CHOKE REPLACEMENT Remove 5 screws 2 at front and 3 at rear see photo also remove ground leads from control and pull out wraparound far enough so that transformer or filter choke can be removed 8 TAPE CARTRIDGES Before servicing the tape player portion of this unit always check for the sibility of a defective pre recorded tape cartridge particularily if one is returned with the unit This should be done by substituting the tape cartridge with one thatis known to be good 9 TAPE HEAD AND CAPSTAN CLEANING One major cause of improper tape player operation is oxide build up on the head and cap stan During normal operation some iron oxide particles are loosened from the tape and build up This accumulation of oxide can cause poor playback and up and down tape travel The head and capstan should be cleaned whenever the unitis ser viced and this can be done either in the car or on the service bench To clean the head and capstan use a cotton swab moistened with head cleaner or isopropyl alcohol then wipe dry CAUTION should exercised when cleaning playback head to prevent getting cleaner onany plastic parts AM RADIO PLATED BOARD REMOVE 5 SCREWS RETAINING REMOVE CLIP MOUNTING TAPE PRE AMP BRACKET AUDIO PLATED lt BOARD ae BRACKET SCREWS FROM WRAPAROUND CHASSIS GROUND PRE AMP LEAD PLATED BO
32. mylar 25 500 500 mf 16V lytic USE 23 403024 04 3 40 SEE TAPE DECK PARTS 32 mf 10V 1 65 32 mf 10V 1 65 5 mf 40 20 15V lytic 30 5 mf 40 20 15V lytic 30 1 mf 40 20 15V lytic l mf 40 20 15V lytic 35 22 mf 80 20 12 35 MISCELLANEOUS ELECTRICAL PARTS 22 mf 80 20 12 35 2 mf 40 20 10V lytic 45 2 mf 40 20 10V lytic 45 0015 mf 10 100 20 0015 mf 10 100 20 22 pf 10 100V 150 USE 218120539 25 22 pf 10 100V 150 USE 218120539 25 80 mf 16V 65 80 mf 16V lytie 65 0015 mf 10 100 20 0015 mf 10 100 20 1000 mf 16V lytic 1 65 01 mf 80 20 100V USE 21 132103 25 1000 mf 16V 1 1 65 SEE TAPE DECK PARTS 1 mf 20 100 mylar 35 01 80 20 100 USE 21 132103 25 01 mf 80 20 100V USE 21 132103 25 01 mf 80 20 100V USE 21 132103 25 DIODE 1 35 DIODE 1 35 SEE TAPE DECK PARTS SWITCH radio tape 2 35 SEE TAPE DECK PARTS BULB dial 11A 14 4V 35 SPEAKER 4 8 89 8 9 60 SPEAKER 5 1 4 80 VC 7 05 SPEAKER 6 PM 80
33. or incorrectly installed drive belt 85 2 Loose motor mounting screws 82 83 84 and 86 3 Motor drive shaft part of 2 not vertical 1 Micro switch 10 not activated 2 Defective micro switch 10 or defect in motor or regulator circuit 3 Shorted regulator filter capacitor 52 or defective regulator transistor 1 Loose or intermittent head cable 79 2 Defective tape radio switch E 8 and or associated circuitry 1 Radio tape changeover switch E 8 or actuating arm part of switch bent or defective POSSIBLE SOLUTION Replace cam Make certain head cable does not restrict up and down motion of head dress head cable to 1 minimize binding Replace capacitor Check to see that bottom cover has an armite disc attached to it to insulate the motor case fromthe cover Ifthe disc is missing electrical tape can be used to insulate the motor Check tape cartridge by inserting a known good cartridge Replace bearing lubricate replacement bearing with silicon grease Part 11M490487 Replace if severely scored replace capstan housing 58 also Replace capstan housing 58 Do not attempt to lubricate oilite bearings in capstan housing Drive belt should be replaced if stretched or banana shaped belt should be installed with paint stripe on outside Tighten Bend the motor housing slightly away from the capstan shaft using wide jawed pliers CAUTION Do not app
34. oving tape cart ridge turnon motor with micro switch actuating arm and check flywheel speed with a strobe disc Motorola Part Number 68P40059A33 or equiva lent Ifspeed is excessively slow shut off unit and remove drive belt flywheel should move freely when turned by hand If it does not check for missing nylon bearing on bottom of flywheel loose or missing thrust plate at bottom of capstan housing defective bearings in capstan housing or defective flywheel 11 12 TAPE PLAYER TROUBLESHOOTING CHART SYMPTOM Slow speed also see Poor Tape Drive Cont d Poor tape drive wow and flutter also see Slow Speed Improper or erratic head indexing CAUSE Electrical defects Open regulator filter capacitor 52 Defective motor 2 Defective tape cartridge 2 Insufficient tension on tape cartridge 3 Flywheel 4 and or motor drive shaft part of 2 dirty or greasy 4 Defective or incorrectly installed drive belt 85 5 Cartridge retaining roller 22 not seated properly or missing 6 Scraping cartridge 7 Scored capstan shaft part of 4 8 Bent motor housing 81 1 Inadequate tension on solenoid plunger tension spring 37 2 Defective solenoid plunger 38 3 Head tension screw 78 out of adjustment 4 Cam clutch spring part of 39 out of hole or missing POSSIBLE SOLUTION If flywheel moves freely when turned by hand che
35. pes for the original equipment all are ceramic disc 20 40746 06 21040339483 20 40254 14 21D40536A30 8 42750 06 23C43280A02 21C40367A19 8C42750A06 8C42750A06 21D40536A49 8C42750A20 21 40367 14 8C42750A35 8 42750 13 23C43280A03 21C40339A44 8C42750A06 23 40302 07 23 41928 33 23 41928 33 23C43280A21 23C43280A21 23C43280A14 23C43280A14 21C41680A15 21C41680A15 23C43280A02 23C43280A02 21D40339A87 21D40339A87 21D40536A50 21D40536A50 23C41928A23 23C41928A23 21D40339A87 21D40339A87 23C41928A29 21040339 78 23C41928A29 8C40906A05 21D40339A78 21D40339A78 21040339478 485134816 488134816 40B43656A01 655538410 50 41451 01 50 41607 01 50 41485 01 50 41265 01 50 41265 01 50 41485 01 type unless otherwise specified TRIMMER 110 to 380 pf 85 330 pf 20 100 USE 21 752589 25 DUAL TRIMMER 30 to 150 pf 30 to 150 1 15 180 pf 10 100 N750 20 01 mf 20 100V mylar 25 2 mf 40 20 10V 45 250 pf 5 100 40 01 mf 20 100V mylar 25 01 mf 20 100V mylar 25 180 pf 5 100V 750 25 0047 mf 10 100 mylar USE 8 40906427 30 160 pf 5 100 MICA USE 21 40367 09 30 002 mf 10 100V mylar 30 l mf 20 100 mylar USE 8 40906 05 35 10 mf 40 20 6V lytic 55 150 pf 10 100 20 01 20 100V
36. ridge Before inserting new cartridge examine actuating arm see Cause 2 Replace arm Replace capstan housing Check tape cartridge by substitution with a known good tape cartridge Check head height and azimuth adjustments with a test tape Motorola Part No 99P43309A01 as outlined in Adjustments section Grasp at rear of head mounting bracket with a pair of long nose pliers and squeeze gently while moving head up and down until binding is relieved CAUTION Donot apply excessive pressure as ball bearings may pop out To check this adjustment index tape head to its lower position tracks 4 and 8 then with unit vertical lift up tape head it should have suffi cient tension to spring back against the transfer pin without binding Also check for 1 4 adjust ment of head tension adjusting screw see justments Check distance between bottom edge of tape guide bracket and chassis it should be 090 095 If itis not bendor replace the tape guide bracket CAUTION Bend at point not at the two 2 tines see photo Replace capstan housing Replace cam and ratchet assembly See Improper or Erratic Head Indexing Check regulator transistor by shorting base to emitter of regulator transistor to remove for ward bias motor should stop if it does not regulator transistor is shorted Replace Check tape cartridge by inserting a known good cartridge Check for binding by first rem
37. ru dummy see Figure 4 1020 Tuner carriage 8 9 amp 10 Adjust for maximum 9 16 from high end stop 5 1610Kc High end stop 5 6 amp 7 Adjust for maximum 6 Repeat Steps 4 and 5 until further increase Step 5 should be last step Then cement cores in place NNAT ANTE RIMMER Weak station 7 Adjust for maximum with between 1400 radio installed in car and and 1600Kc antenna fully extended TO CALIBRATE POINTER Tune radio to 1000Kc signal and reposition pointer on dial cable with the center of the 1000Kc mark on dial scale TOP REMOVE SIDE COVER TO 4 1ST IF GAIN ACCESS TO CORES Z W 3 262 5KC 25 IF ALIGNMENT ANT TRIM DETAIL a 6 z TOP O 2ND IF 262 5KC BOT RF TRIM 1610KC ALIGNMENT LOCATION DETAIL PLUG TO FIT RECEIVER ANTENNA RECEPTACLE TO SIGNAL TO RECEIVER GENERATOR DNEM RECEPTACLE I 1 METAL SHIELD MUST BE ATTACHED TO PLUG CORE ALIGNMENT DUMMY TOOL DETAIL 15 U W NH Ho POST a HH CJ Q u C 17 C 37 C 38 C 39 C 40 C 41 C 42 C 43 C 44 C 45 C 46 C 47 C 48 c 49 C 50 C 52 C 53 54 C 55 C 56 E 1 2 E 3 thru E 7 E 8 E 9 E 10 E 11 E 12 16 51 CAPACITORS NOTE REPLACEMENT PARTS LIST recommended replacement ty
38. t Grand Avenue Franklin Park Illinois 3 The yellow copy of the Motorola Guarantee Labor Claim is to be re tained by the authorized service station for his files 4 Defective parts for guarantee re pairs made on this model are to be sent to your Motorola Distributor 2 67 with all transistor radio for free replacement supported with the defective parts return tag which you are now using 5 Only those service shops author ized by their Motorola Distributor can perform guarantee repairs ona no charge basis to the customer If you are not already authorized as a Motorola Service Station and youare interested in handling this service please contact your Motorola Dis tributor for complete details OPERATING INSTRUCTIONS OPERATION TO PLAY TAPES Turn unit on by rotating the on off and volume con trol to the right Select a tape cartridge and insert it label side up and open end first into the tape slot Push the cartridge in until it is firmly seated THISISIMPORT The tape cartridge will now play in succession all four chan nels Adjust volume tone and bal ance as required NOTE Inserting tape cartridge into slot automatically switches this unit from AM radio operation to tape operation TO OPERATE AM RADIO Tape cartridge must be pulled out com pletely or at least 1 from its seated position before radio will operate Turn unit on by rotating the on off and volume contro
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